diff --git a/Makefile b/Makefile
index 755f8f84ae..32cc9df73e 100644
--- a/Makefile
+++ b/Makefile
@@ -142,7 +142,7 @@ $(C_BUILDDIR)/%.o: c_dep = $(shell $(SCANINC) -I include $(C_SUBDIR)/$*.c)
 endif
 
 ifeq ($(DINFO),1)
-CFLAGS += -g
+override CFLAGS += -g
 endif
 
 $(C_BUILDDIR)/%.o : $(C_SUBDIR)/%.c $$(c_dep)